Article contents
Enhanced Third Order Nonlinearity in Macrocyclic Compounds
Published online by Cambridge University Press: 25 February 2011
Abstract
The third-order nonlinear optical susceptibilities χ(3)1111(-3ω; ω, ω, ω) of macrocyclic compounds such as phthalocyanines and porphyrins are determined for the vacuum deposited and spin coated thin films by optical third-harmonic generation measurements at a wavelength of 1907 nm. The enhancements of the χ(3) values are discussed in terms of the central metal substitution, molecular stacking, extended ring size and number of χ-electrons. We firstly describe the results of extended porphyrin systems with 26 delocalized π-electrons.
- Type
- Research Article
- Information
- Copyright
- Copyright © Materials Research Society 1992
References
REFERENCES
- 1
- Cited by